Android version

Update package name

Right imports

Controlled exception

Right build version code

Right package name

.gitignore

@@ -40,7 +40,6 @@ buck-out
 .gradle
 local.properties
 *.iml
-/android/
 
 # Node
 node_modules

android/build.gradle

@@ -0,0 +1,25 @@
+
+apply plugin: 'com.android.library'
+
+android {
+    compileSdkVersion 23
+    buildToolsVersion "23.0.1"
+
+    defaultConfig {
+        minSdkVersion 16
+        targetSdkVersion 22
+        versionCode 1
+        versionName "1.0"
+        ndk {
+            abiFilters "armeabi-v7a", "x86"
+        }
+    }
+    lintOptions {
+       warning 'InvalidPackage'
+    }
+}
+
+dependencies {
+    compile 'com.facebook.react:react-native:0.20.+'
+}
+

android/src/main/AndroidManifest.xml

@@ -0,0 +1,5 @@
+
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+          package="com.apsl.versionnumber">
+
+</manifest>

android/src/main/java/com/apsl/versionnumber/RNVersionNumberModule.java

@@ -0,0 +1,46 @@
+
+package com.apsl.versionnumber;
+
+import com.facebook.react.bridge.ReactApplicationContext;
+import com.facebook.react.bridge.ReactContextBaseJavaModule;
+import com.facebook.react.bridge.ReactMethod;
+import com.facebook.react.bridge.Callback;
+
+import android.content.pm.ApplicationInfo;
+import android.content.pm.PackageManager.NameNotFoundException;
+import android.content.pm.PackageManager;
+
+import java.util.HashMap;
+import java.util.Map;
+
+public class RNVersionNumberModule extends ReactContextBaseJavaModule {
+
+  private final ReactApplicationContext reactContext;
+
+  private static final String APP_VERSION = "appVersion";
+  private static final String APP_BUILD = "buildVersion";
+
+  public RNVersionNumberModule(ReactApplicationContext reactContext) {
+    super(reactContext);
+    this.reactContext = reactContext;
+  }
+
+  @Override
+  public String getName() {
+    return "RNVersionNumber";
+  }
+
+  @Override
+  public Map<String, Object> getConstants() {
+    final Map<String, Object> constants = new HashMap<>();
+    final PackageManager packageManager = this.reactContext.getPackageManager();
+    final String packageName = this.reactContext.getPackageName();
+    try {
+      constants.put(APP_VERSION, packageManager.getPackageInfo(packageName, 0).versionName);
+      constants.put(APP_BUILD, packageManager.getPackageInfo(packageName, 0).versionCode);
+    } catch (NameNotFoundException e) {
+      e.printStackTrace();
+    }
+    return constants;
+  }
+}

android/src/main/java/com/apsl/versionnumber/RNVersionNumberPackage.java

@@ -0,0 +1,29 @@
+
+package com.apsl.versionnumber;
+
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.List;
+
+import com.facebook.react.ReactPackage;
+import com.facebook.react.bridge.NativeModule;
+import com.facebook.react.bridge.ReactApplicationContext;
+import com.facebook.react.uimanager.ViewManager;
+import com.facebook.react.bridge.JavaScriptModule;
+
+public class RNVersionNumberPackage implements ReactPackage {
+    @Override
+    public List<NativeModule> createNativeModules(ReactApplicationContext reactContext) {
+      return Arrays.<NativeModule>asList(new RNVersionNumberModule(reactContext));
+    }
+
+    @Override
+    public List<Class<? extends JavaScriptModule>> createJSModules() {
+      return Collections.emptyList();
+    }
+
+    @Override
+    public List<ViewManager> createViewManagers(ReactApplicationContext reactContext) {
+      return Collections.emptyList();
+    }
+}